Topic
Bioaccumulation
About: Bioaccumulation is a research topic. Over the lifetime, 7112 publications have been published within this topic receiving 208953 citations. The topic is also known as: bioakumulace.
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TL;DR: Assessment of the distribution of some trace metals in the tissues of various mangrove plants developing downstream highly weathered ferralsols in New Caledonia found Cu and Zn metals had a greater mobility in the plant, and were characterized by high bioconcentration and translocation factors compared to the other metals.
88 citations
TL;DR: Overall, spatio-temporal distributions of PFAAs in water and bioaccumulation characteristics seemed to be associated with recent restrictions of PFOS-based products and uses of PFBS-based substitutes.
88 citations
TL;DR: The ability of AC to effectively limit the mobility of HOCs in aquatic environments may outshine potential negative secondary effects, and these outcomes must be held in comparison to traditional remediation approaches.
Abstract: Sorbent amendment with activated carbon (AC) is a novel in situ management strategy for addressing human and ecological health risks posed by hydrophobic organic chemicals (HOCs) in sediments and soils. A large body of literature shows that AC amendments can reduce bioavailability of sediment-associated HOCs by more than 60–90%. Empirically derived biodynamic models can predict bioaccumulation in benthic invertebrates within a factor of 2, allowing for future scenarios under AC amendment to be estimated. Higher AC dose and smaller AC particle size further reduce bioaccumulation of HOCs but may induce stress in some organisms. Adverse ecotoxicity response to AC exposure was observed in one-fifth of 82 tests, including changes in growth, lipid content, behavior, and survival. Negative effects on individual species and benthic communities appear to depend on the characteristics of the sedimentary environment and the AC amendment strategy (e.g., dose and particle size). More research is needed to evaluate rep...
88 citations
01 Jan 2007
TL;DR: In this article, Meiliang et al. this article proposed an approach for the identification of the species Cyprinus carpio Linnaeus, Carassius auratus and Aristichthys nobilis.
Abstract: Cr， Zn， Cu， Cd， Pb 内容在 Cyprinus carpio Linnaeus， Carassius auratus Linnaeus， Hypophthalmichthys molitrix 和 Aristichthys nobilis 被决定，它从 Meiliang 海湾被抓住，泰胡·莱克，中国的一个大、浅、发育营养正常促进剂的湖。结果显示出那：(1 ) Cr， Cu， Pb，在四鱼种的可食的部分的 Cd 内容比中国食物健康低得多标准(1994 ) ，而是 Zn 内容比标准高；( 2 ) Cd 内容在鱼的肝是最高的， Pb 内容是几乎在鱼的所有机关的一样，主要在皮肤和性腺充实的 Cr 内容， Zn 内容在性腺是最高的(♀)，并且 Cu 内容在肝是最高的；(3 ) 全部的金属累积在肝是最大的并且在肌肉最低。全部的金属累积在 C 是最高的。auratus L。这调查显示在泰胡·莱克的鱼产品为人的消费仍然是安全的，但是消费的数量应该在中国食物健康标准下面被控制避免 Zn 的过多的吸入。
88 citations
TL;DR: The bioconcentration of selected PPCPs was studied in marine mussels (Mytilus galloprovincialis) and the uptake of UV filter was rapid in mussels, followed by elimination within 24 h.
Abstract: Bioaccumulation is essential for gaining insight into the impact of exposure to organic micropollutants in aquatic fauna. Data are currently available on the bioaccumulation of persistent organic pollutants, but there is very little documentation on the bioaccumulation of pharmaceuticals and personal care products (PPCPs). The bioconcentration of selected PPCPs was studied in marine mussels (Mytilus galloprovincialis). The selected PPCPs were two organic UV filters, i.e., 2-ethylhexyl-4-trimethoxycinnamate (EHMC) and octocrylene (OC), and two benzodiazepines (BZP), i.e., diazepam (DZP) and tetrazepam (TZP). Laboratory experiments were performed in which M. galloprovincialis was exposed to these compounds either directly from water, for the less lipophilic substances (BZP) or via spiked food for lipophilic UV filters. M. galloprovincialis uptook and eliminated BZP following first-order kinetics. The biological half-life (t
1/2) of TZP was 1.4 days, resulting in a bioconcentration factor of 64 and 99 mL g−1 dry weight (dw), respectively, for 2.3 and 14.5 μg L−1 of exposure, while the biological half-life (t
1/2) of DZP was 0.4 days, resulting in a bioconcentration factor of 51 mL g−1 dw for 13.2 μg L−1 of exposure. The uptake of UV filter was rapid in mussels, followed by elimination within 24 h. EHMC increased from 15 to 138 ng g−1 dw in 1 h and decreased to 25 ng g−1 after 24 h for 11.9 μg L−1 exposure. OC reached 839 ng g-1 dw after 1 h and decreased to 33 ng g-1 after 24 h for 11.6 μg L-1 exposure. However, EHMC and OC were slightly accumulated in 48 h, i.e., 38 and 60 ng g−1 dw, respectively.
88 citations